Previous studies showed that a wide range of medicinal plants exerted antioxidant and free radical scavenging activity. Minimal bactericidal concentration of metanoic extracts ranged from 12. A single plant may have diversity of phytochemicals, which represents a number of pharmacological properties. Table 1 gives a list of medicinal plants analysed along with parts used and medicinal uses. These plants exhibit strong antioxidant activity that can explain their uses in traditional medicines in the past as well as prese nt.
Witch hazel, propolis epid, artichoke, and hawthorn afforded. The antioxidant activity of these two medicinal plants was evaluated by measuring reducing ability, free radical scavenging activity by dpph and hydrogen peroxide methods. The ascorbic acid, carotenoids and total phenol contents with antioxidant activity were also determined. The free radical scavenging activity against 1,1diphenyl2picryl hydrazyl dpph was evaluated during the course of work. In most of the plants the tpc and the antioxidant activity of the ethanol extracts were significantly higher p of water alone extracts. Examination of the phenolic profile and antioxidant. The dried 500 g powder of the eleven plant parts was extracted with meoh in a soxhlet apparatus. Journal of medicinal plant research vol 624pp 40824086 26 june, 2012. Antioxidant and antiinflammatory medicinal plants have. Medicinal plants used in the traditional medicine are wellknown significant sources of natural antioxidants. Antioxidant activity of plant extracts containing phenolic. Study of total phenolic and flavonoid content, antioxidant activity and antimicrobial properties of medicinal plants volume 1 issue 1 2014 sarabjot kaur,1 poonam mondal2 1department of pharmaceutical sciences, assam university, india 2department of biotechnology, lovely professional university, india.
The antioxidative activity of a total of 92 phenolic extracts from edible and nonedible plant materials berries, fruits, vegetables, herbs, cereals, tree materials, plant sprouts, and seeds was examined by autoxidation of methyl linoleate. The meoh extracts of the 2 most antimicrobial active plants, t. Antioxidant activity exhibited by medicinal plants, vegetables and fruits from north of iran reyhaneh sariri. Extracts of medicinal plants syzygium aromaticum, mentha piperita, cinnamomum verum, pimpinella anisum and zingiber purpurea were investigated for their biological activity. Abstract liver disease has become one of the major health problems in the world, and the death rate is going rapidly to increase. Determination of antioxidant activity by using in vitro methods 2. Plants contain a wide variety of free radical scavenging molecules, such as polyphenols, dietary glutathione, vitamins and endogenous metabolites. Antibacterial, antifungal and antioxidant activities of some. Diospyros malabarica is a plant from ebenaceae family. Minimal inhibitory concentration of metanoic extracts ranged from 6. Antioxidant activity and nutraceutical property of the fruits of an ethno medicinal plant.
Objective the objective of the study was to investigate the antioxidant activity of selected medicinal plants. Medicinal plant tissues are commonly rich in phenolic compounds such as flavonoids, phenolic acids, stilbenes, tannins, coumarins, lignans and lignins. Frap assay was done according to benzie and strain procedure 40. At the same time, the antioxidant activities of some essential oils, measured through several methodologies, are presented and compared. The results suggest that phenolic compounds are the significant contributors to the antioxidant activity of the medicinal plants studied. Antioxidant and antimicrobial activities were determined by standard protocols.
Effect of extraction solventtechnique on the antioxidant activity of selected medicinal plant extracts bushra sultana 1, farooq anwar 1, and muhammad ashraf 2 1 department of chemistry and biochemistry, university of agriculture, faisalabad38040, pakistan 2 department of botany, university of agriculture, faisalabad38040, pakistan. Method collected plant species were subjected to maceration in methanol for 72 hrs. Abstract identification and characterization of natural products with antioxidant and antiproliferative activity has received much interest over the past few years. Antioxidant activity of african medicinal plants request pdf. Antioxidant and antiinflammatory activities of selected. Effect of extraction solventtechnique on the antioxidant. For antioxidant activity, the radical scavenging activity, reducing power and phenolic contents of ethanol plant extracts were determined. Antioxidant activity in medicinal plants associated with.
Evaluation of antioxidant activity of two important memory. Antioxidant activity of some common medicinal plants impact factor. The study aimed to assess the antioxidant activity. Oxidative stress plays a crucial role in the emerging, development, and the progression of liver diseases. Antibacterial activity in vitro of medicinal plants wardah shahid 1, rabia durrani 2, saira iram2, maryam durrani 3, fawad ali khan 4 1plant taxonomy lab, department of plant sciences, faculty of biological sciences, quaidiazam university, 45320, 00925190643194, islamabad, pakistan.
Antioxidant activity of medicinal and aromatic plants. With the dpph test the ability of a compound to act as a donor for hydrogen atoms or the antioxidant activity of some medicinal plants 200 table 2. The results indicate that the phenolics, flavonoids and trace metals play an important role in the antioxidant activities of medicinal plants. Keeping the above in view the present chapter focuses on the i diversity of antioxidant phytochemicals in medicinal.
A large number of medicinal plants and their purified constituents have shown beneficial therapeutic potentials. Antioxidant activity, total phenolic and flavonoid contents of selected medicinal plants used for liver diseases and its classification with chemometrics harto widodo 1,2, sismindari sismindari3, widya asmara 4, abdul rohman 3,5 1centre study of biotechnology, gadjah mada university, yogyakarta, indonesia. Plantderived products such as polyphenols, terpene. Photoprotective potential of medicinal plants from cerrado. Epidemiological, clinical and experimental studies have provided evidence that myocardial infarction is largely preventable by suppression of free radical generation and augmentation of endogenous. The assays employed were ferric reducing antioxidant power, trolox equivalent antioxidant. Screening of in vitro antioxidant activity of methanolic.
In vitro antioxidant and anticancer activity of leea. Antioxidant activity of some common medicinal plants. Acetylcholinesterase, alzheimer, antioxidant, antilipidperoxidation, medicinal plants introduction the investigation of plants used as remedies in traditional folk medicine can be as useful tool to identify several biologically active molecules from the 250 000 higher plant species testai, et al. Study of antioxidant activity of some medicinal plants. Antioxidant activity, total phenolic and flavonoid. The aim of this work was to study the structure activity relationships of the antioxidant activity of natural coumarins isolated from four korean medicinal plants 117 and four purchased coumarins 1821. The present investigation suggests that medicinal plants which possess good antioxidant potential are the best supplements for the diseases associated with oxidative stress.
Antibacterial, antifungal and antioxidant activities of some medicinal plants 2146 pak. Phytochemicals screening and evaluation of antioxidants. Photoprotective potential of medicinal plants from cerrado biome brazil in relation to phenolic content and antioxidant activity. Ethiopia is one of the developing countries which have enormous diversity of plants. Understanding their mechanism of action and therapeutic efficacy, 2012. Phytochemical screening and antioxidant activities of some selected medicinal plants used for malaria therapy in southwestern nigeria. This article is part of the special issue of flavour and fragrance journal entitled aromatic plants. The most practical way to fight degenerative diseases is to increase antioxidant activity in our body and that could be achieved by consumption of vegetables, fruits or edible plants. The proximate compositions of different medicinal plants are presented in tables 2 and 3. The study showed that the plant revealed an antioxidant activity 80 % with ic 50 0. The main active antioxidant compounds isolated from. The major plant compounds characterized by antioxidant activity are polyphenols.
Pharmacological evaluation of bangladeshi medicinal plants for antioxidant activity m. Antimicrobial and antioxidant activities of some nigerian. The antioxidant activity of the 90 plant extracts was determined by 2, 2 diphenyl1picrylhydrazyl dpph assay. Antioxidant and antiinflammatory activities of selected medicinal plants containing phenolic and flavonoid compounds lin zhang, anjaneya s. Page 21 dpph free radical scavenging activity of some leafy vegetables used by tribals of odisha, india rajani kanta sahu 1, manoranjan kar 2, rasmirani routray 3, 1. The wine we tested had significantly lower free radical activity than 86% of the medicinal plants tested with 20% of the plants also higher in superoxide scavenging. Chinese medicinal plants contain a wide variety of natural antioxidants, such as phenolic acids, flavonoids and tannins and possess more potent antioxidant activity than common dietary plants cai et al. Pdf antibacterial and antioxidant activity of medicinal. Pdf phytochemical screening and antioxidant activities. Green tea, oligomeric procyanidins from grape seed and pine bark, bilberry, and ginkgo exhibited taa in the range of 5. Antioxidant activity of plant extracts was assessed by. For the past three decades, antioxidants are used to treat complex disorders such as cancer and alzheimers disease.
Different research has reported the cardioprotective activity of medicinal plants pointing to the antioxidant potentials as possible mechanism. Study of antioxidant activity of some medicinal plants having high content of caffeic acid derivatives agnieszka tajnerczopek 1, mateusz gertchen 1, elzbieta rytel 1, agnieszka kita 1, alicja z. Rosemary, sage, thyme, nutmeg, turmeric, white pepper, chilli, pepper, ginger, garlic and several medicinal plants extracts exhibit antioxidant activity 41,42,43,44. Caffea arabica showed greater antioxidant activity measured as scavenging of dpph, superoxide radicals, reducing power and inhibition of microsomal lipid peroxidation. However, due to having a large variety of medicinal plants species, all of the major medicinal plants have not yet been evaluated for their medicinal properties, including antioxidant activity. In vitro antioxidant activity of extracts from the leaves of felicia. Ravipati, sundar rao koyyalamudi, sang chul jeong, narsimha reddy, paul t. The eight plant species evaluated in the study demonstrated variability in antioxidant characteristics. Rahman2 1department of pharmacy, jahangirnagar university, dhaka, bangladesh.
Medicinal plantsderived natural antioxidants, which are in the form of raw extracts andor chemical constituents, are very efficient to block the process of oxidation by neutralizing free radicals 3. Introduction the many number of medicinal plants are used in the cellular and metabolic disease. Aug 19, 2010 in the present study, a brief description of the mechanism involved in the majority of techniques used for the evaluation of antioxidant activity of essential oils is given. Comparative phytochemical investigation, antioxidant and. Dpph scavenging activity has been used by various researchers as a quick and reliable parameter to assess the in vitro antioxidant activity of crude plant extracts.
View enhanced pdf access article on wiley online library html view download pdf for offline viewing. Parts of medicinal plants were extracted with acetone 50%. The moisture content of the plant samples was found to. However, there is little information available concerning antioxidant activity of medicinal plants growing wild in northeastern iran. Estimation of phytochemical content and antioxidant activity. Results showed that both of ethanolic and water extracts of some plant possessed high cytotoxic and antioxidant activities and inhibited the cell growth of cancer cells.
At the same time, the antioxidant activities of some essential oils, measured through. Phytochemical investigation and in vitro antioxidant activity. The bark extract of the plant showed scavenging activity of hydroxyl radicals and the extract contained polyphenols, carbohydrates and sterols4. Libyan capparis spinose has good antioxidant activity. Anthocephalus cadamba, aegle marmelos, emblica officinalis and moringa oleifera. Antioxidant activity exhibited by medicinal plants. Antioxidant properties of several medicinal plants. These compounds have been used as antioxidant, antcarcinogenic, antifungal, antibacterial, antispasmodic, antiinflammatory and antidiabetic. Pdf antioxidant activity of selected medicinal plants of. Antioxidant activity was evaluated in vitro using the cationradical 2,2. Ferric reducing antioxidant power frap assay was used to measure the total antioxidant power of the extracts. Pdf in vitro antioxidant and antiproliferative activity. Pdf antioxidants or inhibitors of oxidation are compounds which retard or prevent the oxidation and in general prolong the life of the oxidizable.
Phytochemicals screening and evaluation of antioxidants and. Antioxidant activity, total phenolic and flavonoid content of. Biological activity is the basis for traditional medicine, which uses the pharmacological efficacy of natural compounds present in herbal preparations for treating human diseases 1. The powder samples and methanol extract of 11 medicinal plants were subjected to analysis of proximate composition and measurement of antioxidant activity. Wine has been recognized for its antioxidant activity kinsella et al. Different parameters studied include phenolic contents, moisture, ash, crude fiber, fats and waxes. Antioxidant activity of selected medicinal plants journal.
Previous studies showed that a wide range of medicinal plants exerted antioxidant activity. Pdf antioxidant activity and total phenolic content of some. Antioxidant activity and phenolic content of some medicinal. Antibacterial and antioxidant activity of traditional. Antioxidant activity and total phenolic content of some medicinal plants in urticaceae family. Some of these plants have shown potent antioxidant activity16,7. Natural compounds especially those that are derived from medicinal plants provide a large number of antioxidants useful for humans. May 26, 2009 the aim of this work was to study the structureactivity relationships of the antioxidant activity of natural coumarins isolated from four korean medicinal plants 117 and four purchased coumarins 1821.
Evaluation of antioxidant activity of medicinal plant 885 figure 2. Antibacterial and antioxidant activity of medicinal plants article pdf available in international journal of plant sciences 81. A lot of studies have been done on medicinal values of higher plants but less on marine sources and wild nonedible mushrooms. Screening of medicinal plant extracts for antioxidant activity. The presences of phytochemicals, antibacterial and antioxidant activities were investigated. The antioxidant activity and total contents of phenolic compounds and flavonoids in extracts of several medicinal plants from southeastern kazakhstan are studied. Free radical scavenging activity was evaluated using 1,1. The antioxidant activity of polyphenols is accredited to their redox properties i. Phytochemical screening, antimicrobial and antioxidant. The phytochemical analysis of these medicinal plants have revealed a large number of compounds including flavonoids and phenolics which have shown potent antioxidant activity. Asteraceae species were widely applied in traditional medicines in asian countries as sources of natural antioxidants and antimicrobial agents. The present study investigates comparative antioxidant, anticancer activity and qualitative, quantitative and spectral characterization of phytochemicals present among aqueous and ethanolichydroethanolic leave extracts of four medicinal plants viz. Introduction in recent times, interest in the application of plant extracts in the food industry has continued to grow, mainly because of their antioxidant properties and associated healthpromoting effects for humans. In the present study, a brief description of the mechanism involved in the majority of techniques used for the evaluation of antioxidant activity of essential oils is given.
Several herbs and spices have been reported to show antioxidant activity. Antioxidant activity and nutraceutical property of the. Pdf medicinal plants with antioxidant and free radical. Medicinal plants are good sources of bioactive compounds that guards the body against cancer and chronic ailments. The antioxidants compounds like ascorbic acid, total phenols and tannins were also evaluated in these plants. Antioxidant properties of medicinal plants from peru 73. Several medicinal plants rasayana have also been extensively used in the indian traditional ayurveda system of medicine for the treatment of number of diseases18. These compounds have multiple biological effects including antioxidant activity. Antioxidant properties of indian medicinal plants wiley online library.
The antioxidant properties of methanol extracts of 12 indian medicinal plants, traditionally used in dis ease areas that probably involve free radical mechanisms. Aniruddha sarma, pranjal sarmah, debaleena kashyap, snehashish dutta and mantu mahanta institutional biotech hub, department of biotechnology, pandu college, guwahati12 abstract. Plants constitute a good source of cheap and affordable drugs and medicinal plants possess they show little or less side 2. Felicia muricata, antioxidant, dpph, abts, radical scavenging activity. Commonly used medicinal plant extracts with standardized content of polyphenols were investigated for their total antioxidant activity taa.
Antioxidant properties of several medicinal plants growing. Introduction experimental evidence suggests that free radicals and reactive oxygen spec ies ros can be involved in high number. Some indian traditional medicinal plants w ith antioxidant. Pharmacological evaluation of bangladeshi medicinal plants. The studied medicinal plants have interesting antioxidant properties, antibacterial activity and a phytochemicals composition that could provide scientific evidence for some folk uses in the treatment of diseases and therefore it can provide natural source of antibacterial drugs and antioxidants and can be useful. This study aimed to evaluate dpphscavenging capacities and antimicrobial activities of nine asteraceae species collected from southern vietnam.
Evaluation of antioxidant activity of medicinal plant. Antibacterial activity in vitro of medicinal plants. Antioxidant activity assays were performed by the method described by benzie and strain 14 with a. Antioxidant activities of coumarins from korean medicinal. Gangavaram maheshwar reddy,visweswaran rao dolly sarma etal evaluation of antioxident activity index by the 2,2 diphenyl 1 picryl hydrazyl method of 40 medicinal plants. Rhizophora mangle is a plant from rhizophoraceae family. The most common and widely distributed group of phenolic compounds in plants is flavonoids.
Panchawat and sisodia 2010 studied in vitro antioxidant activity of saraca asoca roxb. Antioxidant activity of phenol and flavonoid contents of some iranian medicinal plants article pdf available in african journal of biotechnology 511 november 2005 with 1,460 reads. The airdried plant samples were into uniform powder using milling machine separately. Antioxidant activity of medicinal plants from southeastern. Acetylcholinesterase inhibition and antioxidant activity of. In vitro antioxidant properties evaluation of 10 iranian medicinal. The content of total phenolics in the extracts was determined spectrometrically according to the folin. Various herbs and spices have been reported to exhibit antioxidant activity, including ocimum sanctum, piper cubeba linn. The many number of medicinal plants are used in the cellular and metabolic.
Antioxidant activity, total phenolic and flavonoid contents. Estimation of phytochemical content and antioxidant. Antibacterial and antioxidant activities of 8 aromatic plants from the balkan peninsula were studied. Jul 19, 2010 in this study, 11 medicinal plants were analysed for their proximate composition and antioxidant activity.
There is an increasing interest in natural antioxidants e. Antioxidant activity, flavonoid, phenolic, medicinal plant, traditional healer, principal component analysis. However, majority of plants have not yet been screened for such activity. Antioxidant is any substance which when present at low concentrations compared with those of an oxidizable substrate, significantly delays or prevents oxidation of substrate. These categories included such symptoms as sore eyes, swollen limbs and heart chest pain.